Someone who eats a lot.

Eats ether all the time or most of the time for the day.
Mark: im hungry

(goes to a restaurant )

(10 minutes later)

Mark: im hungry, I want more food

Betty: Mark, we just ate
(mark orders more food)

(20 minutes later)

Mark: dude im so hungry!!

Betty: MARK, YOURE SUCH A FATASS, WHY DO U GET HUNGRY EVERY 5 MINUTES JHEEZ!!!!!!.
by BOBBY DONG1998 March 14, 2019
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A person who eats sooo f much and all he does is talk about food
by Fucker😂 June 8, 2017
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A person who refuses to go to school so he can play roblox all day. Their most common names are Noah and Joe.
Joe is such a fatass, he's been playing adopt me all day!
by nsbro March 29, 2022
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Someone or Something with a fatass Not Thick
A Fatass Person Who Acts like GANG memver
Girl with a Fat ass
Damn Talia lose some wait you Fat Bitch
#bitch #dumb
by Cockblock456 June 2, 2019
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When people (especially cops) stand around not doing their jobs but instead eating food and/or drinking coffee.
Joe: Wow, this traffic is really backed up. You'd think the cop would be directing all the cars.
Billy: No, he's too busy fatassing. Look he's got a donut in one hand and a coffee in the other!
by LuLuAiC May 3, 2009
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Not anyone who is obese,but someone who eats no matter what and wants food 24/7.
George:Damn Sebastian ordered 3 big-macs in a row.
Micheal:Yea,hes such a fatass
by Peewee hermanizer August 3, 2014
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